Word: 肆无忌惮 (sìwújìdàn) Traditional: 肆無忌憚 肆无忌惮 dictionary entry sìwújìdàn absolutely unrestrained; unbridled; without the slightest scruple Full dictionary entry for 肆无忌惮 Example sentences using 肆无忌惮 2 sentences, showing page 1 of 1. 有些人在网上肆无忌惮地骂别人。 Yǒuxiē rén zài wǎngshàng sìwújìdàn de mà biéren. Some people insult others online without the slightest scruple. 杂草肆无忌惮地疯长。 Zácǎo sìwújìdàn de fēngzhǎng. The weeds are growing wild and unchecked.